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Lithium (Li) Evaporation Material, Pieces, 99.9%, 1-10 mm
Product Type: Pure Metal Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Store and handle lithium evaporation material exclusively under dry inert atmosphere to prevent rapid oxidation and fire hazard. Use sealed ampoules or inert glovebox environments for all transfer and loading operations.
- Moisture Sensitivity: Lithium reacts violently with moisture and air, requiring strict exclusion of water vapor and oxygen during storage and handling.
- Containment Requirement: Material must be stored in hermetically sealed ampoules or within an inert-atmosphere glovebox to maintain purity and prevent degradation.
- Evaporation Source Compatibility: Use only tantalum, molybdenum, or tungsten boats or sealed ampoules designed for inert handling to avoid contamination or reaction.
- Temperature Constraint: Melting point of 181°C requires controlled heating profiles to avoid thermal runaway or splattering during evaporation.
- Density and Z-Ratio Consideration: Low density (0.53 g/cm³) and high Z-ratio (5.9) necessitate careful calibration of deposition rate monitors for accurate film thickness.
This procedure outlines the safe transfer and thermal evaporation of lithium pieces under strict dry inert conditions. Follow each step sequentially to prevent oxidation and ensure reproducible thin-film deposition.
Required Equipment: Inert-atmosphere glovebox, Sealed ampoule or tantalum/molybdenum/tungsten boat, Thermal evaporation system with resistive heating, Vacuum pump and inert gas supply
- Transfer material to inert environment
Transfer the lithium pieces from the sealed ampoule into an inert-atmosphere glovebox without exposing them to ambient air. - Load evaporation source
Load the lithium pieces into a clean tantalum, molybdenum, or tungsten boat or sealed ampoule inside the glovebox. - Seal and transfer to deposition chamber
Seal the loaded source container and transfer it to the thermal evaporation chamber while maintaining inert gas purge. - Evacuate chamber
Evacuate the deposition chamber to base pressure below 1e-5 Torr to remove residual gases. - Heat source gradually
Apply resistive heating gradually to reach the melting point of 181°C while monitoring chamber pressure for outgassing. - Deposit film
Open the shutter and deposit lithium film at the desired rate, adjusting power to maintain stable evaporation. - Cool and vent
Allow the source to cool completely before venting the chamber with dry inert gas to avoid oxidation of residual material.
What is the significance of the Z-ratio of 5.9 for lithium evaporation in thin-film deposition?
The Z-ratio is a material-specific parameter used in quartz crystal microbalance (QCM) monitoring to correct for acoustic impedance mismatch between the deposited film and the quartz crystal. A Z-ratio of 5.9 for lithium indicates a significant correction factor is needed for accurate thickness monitoring during thermal evaporation. This value is explicitly stated in the product specifications and must be programmed into the deposition controller to ensure precise film thickness control.
What handling and source requirements are necessary for evaporating lithium pieces to prevent oxidation or contamination?
Lithium is highly reactive with moisture and oxygen, so it must be handled under strict dry inert conditions, typically in an argon-filled glovebox. The recommended evaporation sources are sealed ampoules or boats made of tantalum (Ta), molybdenum (Mo), or tungsten (W) to avoid chemical reaction with the molten lithium. The product specification explicitly states 'Sealed ampoule or Ta/Mo/W boat in inert handling setup' as the evaporation source requirement.
What are the recommended storage and safety precautions for lithium evaporation material pieces?
Lithium pieces must be stored under an inert atmosphere (e.g., argon) to prevent reaction with ambient moisture and air. The product is supplied as pieces sized 1–10 mm and requires strict dry inert handling during loading into evaporation sources. Safety data sheets should be reviewed for specific handling guidelines, and the material should be kept away from water and oxidizers due to its high reactivity.
Lithium (Li) evaporation material in 99.9% purity and 1-10 mm pieces is suitable for thermal resistive evaporation, but requires strict inert atmosphere handling and specialized boat materials (sealed ampoule or Ta/Mo/W) due to its high reactivity and low melting point (181°C).
Positive
- High Purity 99.9% for Reproducible Deposition: The 99.9% purity specification ensures minimal contamination in thin films, critical for consistent electronic or optical properties in research-grade coatings.
- Controlled Piece Size 1-10 mm: The specified piece size range facilitates uniform loading into evaporation sources, promoting stable evaporation rates and reducing source spitting during thermal deposition.
Trade-offs
- Requires Strict Inert Handling: Lithium's extreme reactivity with moisture and oxygen necessitates handling under dry inert atmosphere (e.g., argon glovebox) to prevent oxidation and safety hazards, adding infrastructure requirements.
- Specific Evaporation Boat Compatibility: Optimal evaporation requires sealed ampoule or Ta/Mo/W boats; common tungsten boats may react with lithium, requiring careful source material selection and pre-qualification.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
